Necktie sewing machines



Feb. 12, 1957 v. M. NEWMAN NECKTIE SEWING MACHINES INVENTOR.

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United States Patent NECKTIE SEWING MACHINES Victor M. Newman, New York,N. Y.

Application October 11, 1955, Serial No. 539,906

4 Claims. (Cl. i12-174) This invention relates to necktie sewingmachines and is an improvement on the machine described in my UnitedStates Patent No. 2,608,170 of August 26, 1952.

In the above mentioned patent, l disclosed a method and machine for usein necktie construction which employed normally aligned platforms overwhich the necktie fabric and its lining were prelminarily deposited inpredetermined and proper relationship, the platforms being arranged toclose one over the other so as to fold the fabric. Formed or disposed onthe platforms were corrugating strips for crimping the fabric and liningand means were provided for sewing through the corrugations to produce aslip stitch.

The machine of the instant invention improves over the prior machine inthat the fabric and lining are better maintained in their predeterminedposition as the swinging of the platforms fold the fabric to theposition where its edges are crimped and then sewn. Superior crimpingteeth are also provided whereby crimping of the fabric is facilitatedand the action of the needle in sewing through the corrugations isimproved.

Improved means for driving and mounting the needle is also shown herein.In addition, improved means for forming a small stitch in the lining butnot in the fabric is disclosed, such a stitch being considered desirablein the industry as more securely fastening the thread to the lining.

Other advantages of the invention will be apparent from the followingdescription and drawings wherein:

Figure l is a top plan view of the machine in the open position;

Figure 2 is a similar view thereof in the closed position;

Figure 3 is a front elevational view thereof in the closed position;

Figure 4 is an enlarged cross-sectional view as taken along the line 4 4of Figure 2;

Figure 5 is an enlarged cross-sectional view as taken along the line 5-5of Figure l;

Figure 6 is an enlarged, fragmentary, transverse crosssectional view ofthe machine in the closed position with the fabric and lining crimpedbetween the upper and lower platforms of the machine;

Figure 7 is a cross-sectional view as taken along the line 7--7 ofFigure 6;

Figure 8 is a cross-sectional view as taken along the line 8-8 of Figure1;

Figure 9 is an enlarged cross-sectional view as taken along the line 6 6of Figure l;

Figure l0 is a fragmentary top plan view of any one of the corrugatingstrips;

Figure 11 is an enlarged fragmentary view of the needle driving wheeland including the needle locking mechanism; and

Figure 12 is a cross-sectional view as taken along the line 12-12 ofFigure 11.

The machine comprises the platforms 20 and 2l which are hinged at 22 sothat the platforms, which are normally horizontally aligned, becomesuperimposed as noted in Figures 2 and 3 by swinging of the platform 20about the hinges 22. In an actual operating embodiment, and for purposeswhich will hereinafter be made clear, the platforms 2t) and 21 are quiteheavy, those actually used weighing in the neighborhood of thirtypounds. It may be noted that in such embodiment the length of upperplatform 20 was forty-two inches while that the lower platform was sixtyinches, both being fabricated of 5A, steel. Of course, these dimensionsand details are purely representative. The additional length of lowerplatform 21 serves as an extension or supporting table. ln order tofacilitate the manual swinging of platform 20 over platform 21, a handle23 is provided. It will be understood that this handle may assume anydesired form and in fact, may be dispensed with if motor actuation ofthe platform 20 is employed.

Platform 20 is provided with three crimping strips 24, 25 and 26. Thesecrimping strips are provided with teeth 27 which form corrugations orcrimps in the necktie fabric and lining. They are shown as beingseparate strips in order to afford individual adjustment so as toaccommodate neckties of somewhat varying shapes. Accord ingly, thestrips 24 and 26 are bolted down to platform 2G by means of bolts 28which may be tightened in slots 29. The center strip 25 need not beadjustable because it normally does not deviate from its position asshown.

Opposing, stationary, lower platform 2i is likewise formed with threestrips 30, 31 and 32. These are disposed Aso that the teeth 27 thereofare complementary to the teeth of the upper strips 24 to 26. The specicnature of the teeth engagement will be later described. At any rate,suice it here to note that the lining is deposited over the strips 30 to32 and the fabric is disposed over all of the strips, i. e., over thestrips of both the upper platform 20 and lower platform 21. Whenplatform 20 is swung over so as to rest upon platform 21, the teeth ofthe respective and opposing strips will intermesh and form bothcorrugations in the fabric and lining as well as a substantiallycontinuous needle path through which the needle may travel. End strips36 and 32 of the lower platforms 21 are likewise adjustable as abovementioned so as to provide satisfactory mating with the upper strips.

In Figure l0 is shown an enlarged view of the toothed portions of thestrips. Thus, the strips are formed with peripheral concave scallops orslot formations 35 to accommodate impaling needles 36 of the oppositestrip. The function of such impaling needles is to secure and stabilizethe fabric and lining on the platforms as initially set down. It will berecognized that the lining L is first set in place over the lower strips3) to 32 and that the fabric is set down over both sets of strips, allas described in my previous Patent No. 2,608,170. ln order to maintainthe fabric and lining in position as the platform 20 is swung over theplatform 2l, the fabric and lining are pressed down slightly over theimpaling needles so as to discourage accidental 'shifting or falling asthe pivoting of the upper platform 2o is accomplished. It is notnecessary to employ impaling needles 35 extensively, or one for eachtooth, but they may be merely placed at spaced points, i. e., everyfourth tooth or so. Pursuant to this invention, further fabric andlining stabilizing means are provided in the form of rough surfacedsponge rubber strips 37 which are disposed on the upper surface of eachplatform between the strips and the hinge edge thereof, and on the lowerplatform between the strips and the free edge thereof. Such rubberstrips function as frictional retaining surfaces holding the fabricagainst lsliding or shifting while it is being folded along itslongitudinal aXis as the upper platform 2t) is swung.

As for the teeth 27, it'will'be"observedd-rvFigure` l()v centrallyb'et-tt/een-tw'oteeth' of the lowerY strips? indi-V cated inFignre-,However,- siiice thedistaneelsfbetvveen the teeth are greater' thantheir widths, i.ei`,5abor{t twice as great, the inteirne'shed'tc'cth arespaced from each other although the fabric andlining arestillconstrained'v to assume the crimpedtshape asillustrated in Figure7.

v lt will be observed that the spacing between the intermeshed teeth issubstantially the same'a's Vthe width of the teeth themselves.V This'caises the fabric and lining as illustrated in Figure' 7, to assume-aninclined-conlighr'ation between the *inte'rmeshed' teeth.- Itis foundthatc'ri ping of the fabric isrendered easier by such aVtooth-arrangement and the' needle also goes through the corrugations orcrimps more` easily as willebef'noted; Each tooth 27 is'rectangularand'is'fo'rrnedwithan upwardly open transverse slot di? acrossthe topface thereof. ltvwillbe'recog nized by those slrilledfin'A the arti thatwhen the teeth are intermeshed, all the slots ill forni; an alignedneedle path through which an clongatedne'edie is driven-for the purposoof producing the recpre'dr` stitching of the fabric and lining. Theform' and'function of the elongated needle 4f. is conventional and wellunderstood. As was set forth in my above mentioned PatentNo'.-27668,l'70, it is of resilient steel so as tort'ra'vel a b'cntpath butsuiciently sturdy to be driven through'such path without buckling.The'means for actuating the needle may be Conventional,

Y employing mechanism such as described in Vmy Patent No.

2,522,582, dated September i9, i950. in fact,the needle may be handdriven. However, pursuant to the instant invention, an improved form ofneedle: actuatingvdevice is disclosed.

"the means for actuating the elongated needle 41 comprises essentialmechanism largely duplicating that shown in my above mentioned priorPatent No. 2,522,582. Thus, a stationary ooter housing 42 encloses arotatable wheel d3, the underside of housing 42-havng an annular centralperipheral groove whichseats the needle. Wheel 43 is' driven by means ofpulley 44 actuated by belt 45, driven by motor 46. Improved means formounting or securing the needle 4l to the wheel 43 is disclosed, suchimproved means comprising a connecting member 47 which is secured as bypivot bolt 48V to the wheel 43. Connecting member 47 comprisesarectangular piece of steel having a cutout tlon its underside whichreceives the loop or rear end of the needle, the' loop being in ahorizontal plane. However, the particular connection of the loop rearend of the needle to the connecting member -i is of no particularimportance, the disclosed method providing for facilitated connectionand release of the needle to the connecting member. Connecting member 47travels, of course, with wheel 43 and in the fully extended position ofthe needle is at the top of wheel 43 as illustrated in Figure 3. When insuch position, pivot 48 permits the member 417 to be swung outwardly ina horizontal plane whereby its underside may be made accessible forremoving'or inserting 'the needle rear end.

A-pivoted latch 55 is connected to the stationary housing 42 and servesas a cover or door whereby the connecting member 47 may be accessiblewhen the needle is in its fully extended position. At this time, thelatch 55 may be raised upwardly on its pivot 56 so as to expose theconnecting member 47 and permit it torbe swung horizontally outwardlyfor replacing the needle when required.

It will be understood that when the motor 46 is energized, it will drivebelt 45, pulley 44, and wheel 43 so as to actuatefthe needle 4l. lt isnecessary, however, to provide a limiton the actuation of the needle ineach direction since otherwise it would obviously become damaged. This Iaccomplish by employing a post member 57 which is connected to thepulley 44 and which may actually serve as a handle type of actuatingmechanism in head 5S which is arranged to be intercepted by the sta--Vtionary stop 59 connected to the frame of the machine'.

' When the wheel 43 travels clockwise, it serves to extendk the needle4l to its fullestextent as illustrated in Figure 3. When the needle 4lhas reached its fullest extent, the head 53 is intercepted by the stop59 and the pulley may no longer turn: Atthistirne,v the beltdwillsimplyslip` in the pulley. Of course, however, alternative stop meansfor thepulley may be employed Vsuch as an electric switch as will be wellunderstood;

When the needle itl. is retracted, i.. e., after the tie has been sewn,the head 5S" will' strik'e'tlieL/'stop 59 on its op posite side asillustrated in Figure l. These two posi tions thus constitute bothextreme positions of the needle.

Means are also provided to initially guide the needle di. into theneedlepath.A Such means comprisea pivoted guide 66 comprising an upperApla-tefpivoted to a lower plate 62, the upper 61 having a' groove 63 formed theunderside thereofland in whichthe needle rests at alltimes. ln-otherwords,-in normal operation, the needle 4i travels only so far rearwardlyas still tobe retained in the slot '53 while, ofcourse, in. theextendedposition e'.V rear portion thereof is maintained infslot 63. Slot 63 isdisposed immediately adg'acentthc' needle path as formed by the'firsttoothV so that the needle is'properly directed into the needle path.

Afurther feature of the instant invention is meansfor providing a smallstitch in the'lining Lwhichis not formed in the fabric. it will beunderstood that lordinarily all the stitches go through'both ythe liningand the fabric but thetrade'con'siders it -desirable'to apply. one ormore small stitches' in the lining itself whichV `does not penetrate thefabric. This `serves to stabilize the position `ofthe lining whilegiving it freedom of movement in the sewn tie. Suchrmeansltakes`theforrn of a foldable member' 65 comprising a stationary plate 66' anda swingablez plate 67, member 65 following at the end of the toothedVYstrips so that the needle reaches the `member 65' after it has passed`through the needle slotsVV 4.1i ofthe teeth. Plate, 66 is bolted totheV outwardly extending portion. ofv lower platform 2 asillustratedin'Figure l. lt is provided with an upwardly projecting rib69, the extreme outer end 69a ofV which is just' slightly below `theneedle path. Plate 66 Vis pivoted at 7! to swingable' luppery platte 67.Plate 67 is formed withaV slot 71 designed toreceiveribl.

As illustrated in Figures l and 4, the lining L isi initially disposedoverVv lower platef 66+; thel fabric not yethaving been applied to themachine. Upper Vplate 67 is then swung-over onpl'ate 66 so thatrib'forms' a bight 73:V

in the lining L as illustrated in Figure 4. Thereafter, the

fabric is setin lplace oven the toothed strips and theA impaling`needles as set forttlrin-niy prior Patent No. 2,608,- 170.Whenthe-needle isactu-atedto se'w thefabr-ic and lining as willhereinafteri be -set'Y forth, thev needle` end travels past the slotsorlrecesses 4G of-theteeth ofthe last strips 26 and32`andlpenetra'testhrough -thebight-7-3' outwardly beyond the nowsuperimposed plates 66f and 67 as illustrated in Figure 2. This forms asmall stitch Vin the lining but not-.in the fabric. i'

Although the operation of the machine shouldbe evident from'the above'description, abnief summary thereof will now be set forth. i

With the machine in the open position shown in vFigure 1 and the needle41 retraced to its fully rearward posiarancio 30 to 32. Handle 23 isthen lifted by the operator and the entire platform 2i) is swung aboutthe hinges 22 so that it rests upon the lower ilatform 21 and all theteeth intermesh in the manner above described. It is most important thatthe fabric as well as the lining be prevented from creasing ordistorting during this process inasmuch as the fabric should be foldedalong the longitudinal axis thereof whereby its out edges becomesubstantially coincident, superimposed, and in a position to be sewntogether by the aligned needle path formed by the meshing teeth. Theimpaling needles 35 may be effective in maintaining the fabric in properdisposition during the folding thereof, but the rubber layers or strips37 contribute to the importance of this objective since theyfrictionally deter the fabric and lining from sliding or shifting on themechanism.

As the platform 29 is caused to :overlie the platform 2i, the weightthereof in conjunction with the teeth 27 form crimps in the fabric asillustrated in Figure 7 at the same time, all the slots 40 becomealigned in a substantially continuous, somewhat curved needle path. Themotor 46 is then energized in a forward direction and the needle will bedriven through the needle path as well as through all the crimps orcorrugations as illustrated in Figures 3, 6 and 7. Of course, the needlewill have been initially threaded with thread T, the end of which isgrasped or otherwise retained after the needle has sewn through thecomplete fabric and lining and before the needle is returned to itsretracted position.

As the needle is returned to retracted position by changing thedirection of rotation of motor 46, the thread tends to stayin placesince itis held by the fabric through the stitches formed therein but itcan be grasped in any event so that the needle may return While leavingstitches formed in the fabric and lining. The upper platform 20 is thenswung back whereupon the stitched tie and lining may simply be pickedoff the lower platform, the thread being broken so as to release thestitched tie. Thereafter another tie and lining will be set in place asvwill be evident.

There has been shown what is now considered a prefer-red embodiment ofthe invention but it is obvious that numerous changes and omissions maybe made without departing from its spirit.

What is claimed is:

l. In a sewing mechanism comprising a pair of engageable, normallyhorizontal platforms each having opposed sets of teeth for crimpingfabric when engaged by superimposing the platforms with lthe fabricbetween the teeth, the provision of rubber stripping on the uppersurfaces of at least one of said platforms for frictionally engaging thefabric and preventing its slippage from a predetermined positionrelative to said platforms while said platforms are being superimposed.

2. A dev-ice according to claim 1 and wherein said rubber stripping isdisposed between both sets of teeth when the platforms are in theirnormally honizontal position, and further rubber stripping disposed onat least one platform between the set of teeth thereof and the outeredge 4of the platform.

3. In sewing mechanism comprising la driven, elongated needle and a pairof engageable, Inormally horizontal platforms each having elongatedopposed sets of teeth for crimping fabric and lining when engaged bysuperimposing the platforms with the fabric and lining between theteeth, the provision of means for sewing a stitch in the lining and notthe fabric, sa-id means comprising a plate for crimping the lining aloneand forming a raised corrugation therein following the end of theopposed sets of teeth and in the path of movement of said elongatedneedle.

4. A device according to claim 3 and wherein said means comprises alower plate, a vertical rib formed on said plate, an upper plate pivotedto said lower plate and having a slot adapted to receive said verticalrib, said plates being adapted to have the lining disposed between themwhereby the said rib when received by said slot forms a bight in thelining.

References Cited in the le of this patent UNITED STATES PATENTS2,379,733 Marek my 1, 1943 2,522,582 Newman Feb. l0, 1949 2,678,618Newman Mar. 28, 1950

